Electricity + Control August 2016

TEMPERATURE MEASUREMENT

HACCP – Hazard Analysis and Critical Control Points HTST – High Temperature Short Time PU – Pasteur-Units UHT – Ultra High Temperature

Abbreviations/Acronyms

If the temperature is too high there is: • Loss of product quality and taste • Waste of energy If temperature is too low there is: • Insufficient conservation • Limited storage life in terms of quality and taste

Increase of the PU value by 18 %

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If the temperature is too high there is: ♦ An impact on product quality and taste ♦ A waste of energy If the temperature is too low there is: ♦ A risk of microbiological contamination ♦ Risk for consumers’ health

Conclusion So what is the Perfect Solution for Flash pasteurisation? Making use of the fastest sensor in the world – iTHERM.

Flash pasteurisation of bottled beer Accurate and fast temperature control is a precondition for the best quality and taste. Slight temperature increase of 0,5°C leads to an increase of the PU value by 18%. Typical PU values for flash pasteurisation of bottled beer is 20…30 PU with 68…75°C for 30…60 seconds treatment time. Example: Required control range: 26 PU < real PU value < 30 PU • Pasteurising time = 30 seconds ≅ constant (determined by the required flow rate and the pipe length) • Required minimum temperature ≥ 72°C  0,5 min * 1,393 (72°C-60°C) = 26,7 PU What happens, if the temperature increases by only 0,5°C? • 0,5 min * 1,393 (7,.5°C-60°C) = 31,5 PU > 30 PU • Increase of the PU value by 18%

• Flash Pasteurisation is used for careful preservation of perishable beverages. • Accurate temperature control is a precondition for product safety, quality and process efficiency. • The name, Pasteurisatiom, derives from the French Chemist, Louis Pasteur, who invented the heat treat- ment of beverages.

take note

Benjamin Mlangeni is Product Manager of Temperature System Components and Registration at Endress+Hauser. Natlee Chetty is Industry Manager for the Food & Beverage Industry at Endress+Hauser South Africa. Enquiries: Tel: +27 (0) 11 262 8000 or email Benjamin.Mlangeni@za.endress.com

PU = time (min) * 1,393 (T - 60 °C)

PU = time * (min) 1,393 ( T - 60 °C)

Pipe Length

Flow rate

Heat Exchanger

Pump

Holding Tube

August ‘16 Electricity+Control

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